//
//  HPmainTabBar.swift
//  HPweibo007
//
//  Created by  何平 on 15/12/16.
//  Copyright © 2015年 Alan. All rights reserved.
//

import UIKit

class HPmainTabBar: UITabBar {

    private let Count = 5

    override func layoutSubviews() {
        super.layoutSubviews()
        let width=self.bounds.width / CGFloat(Count)
        
        let frame=CGRectMake(0, 0, width, self.bounds.height)
        
        var index=0;
        for view in self.subviews {
            if view is UIControl && !(view is UIButton)
            {
                view.frame=CGRectOffset(frame, CGFloat(index)*width,0)
                index+=index==1 ? 2 : 1
            }
        }
        
        composeButton.frame = CGRectOffset(frame, 2.0 * width, 0)
    }
    
    lazy var composeButton: UIButton = {
        let button=UIButton()
        
        // 设置背景图片
        button.setBackgroundImage(UIImage(named: "tabbar_compose_button"), forState: UIControlState.Normal)
        button.setBackgroundImage(UIImage(named: "tabbar_compose_button_highlighted"), forState: UIControlState.Highlighted)
        
        // 设置按钮图片
        button.setImage(UIImage(named: "tabbar_compose_icon_add"), forState: UIControlState.Normal)
        button.setImage(UIImage(named: "tabbar_compose_icon_add_highlighted"), forState: UIControlState.Highlighted)
        self .addSubview(button)
        return button
    }()
}
